Title :
A 1.2Mpixels/s/mW 3-D Rendering Processor For Portable Multimedia Application
Author :
Woo, Jeong-Ho ; Lee, Min-Wuk ; Kim, Hyejung ; Sohn, Ju-Ho ; Yoo, Hoi-Jun
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
A 1.2Mpixles/s/mW 3D rendering processor is designed and implemented for portable multimedia application. A sustained 20Mpixels/s pixel fill rate is obtained at 10MHz with the help of embedded depth buffer and recursive sub-block mapped texture cache. In order to achieve low power rendering operation, SlimShader architecture with non-atomic read-modify-write scheme and logarithmic datapath is employed. The rendering processor consists of 281k logic gates and 164kB embedded SRAM in 25mm2. It is fabricated in 0.18mum 1-poly 6-metal CMOS logic process and real-time 3D graphics images are successfully demonstrated on the system evaluation board. It consumes 17mW at 10MHz while drawing texture-mapped 3D graphics images
Keywords :
CMOS digital integrated circuits; coprocessors; digital signal processing chips; multimedia computing; rendering (computer graphics); stereo image processing; 0.18 micron; 1-poly 6-metal CMOS; 10 MHz; 17 mW; 3D graphics images; 3D rendering processor; SlimShader architecture; embedded depth buffer; logarithmic datapath; nonatomic read-modify-write; portable multimedia application; sub-block mapped texture cache; Bandwidth; CMOS logic circuits; Computer graphics; Energy consumption; Laboratories; Multimedia systems; Random access memory; Real time systems; Rendering (computer graphics); System buses;
Conference_Titel :
Asian Solid-State Circuits Conference, 2005
Conference_Location :
Hsinchu
Print_ISBN :
0-7803-9163-2
Electronic_ISBN :
0-7803-9163-2
DOI :
10.1109/ASSCC.2005.251724
